JP2732952B2 - Arrangement method of floor duct and floor duct member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for arranging a floor duct for passing electric wiring through a floor and a floor duct member in an intelligent building or a floor where OA equipment is installed.

[0002]

2. Description of the Related Art Conventionally, when wiring on a floor in an intelligent building or a floor where OA equipment is installed, the wiring has been performed as shown in FIGS. That is, duct pipes 3 were arranged in a grid on a slab formwork 2 in order to position a floor duct above a concrete slab 1, and the intersection was joined by a junction box 4. Also, insert stats 5a (cap adjustment type) or 5b (insert stat adjustment type) are provided at appropriate intervals in the duct pipe 3 of the floor duct, and the upper surface is adjusted with the adjustment bolt 6 so that the upper surface matches the upper surface of the slab. Then, concrete was poured, and power was taken out from the required insert stat and distributed to each device. In addition, the duct pipe 3 and the junction box are
The work of arranging 4 is to arrange reinforcing bars on the upper and lower sides of the slab formwork, then attach junction boxes at predetermined positions between the upper and lower reinforcing bars, and install steel pipe duct pipes between each junction box. Had been installed. In addition, when electrical wiring is performed on the floor where the OA equipment is installed, a double floor is used for wiring in the gap or a wiring pit is provided on the floor for wiring. However, in this case, the construction work is increased, so that it is very expensive and not very desirable.

[0003]

According to the above-mentioned conventional method of arranging floor ducts, after slab reinforcement is arranged up and down,
A junction box is attached to a preset arrangement position, and a steel pipe duct is attached between them. For this reason, the duct pipes and the like are disposed between the upper and lower reinforcements, and the reinforcements hinder the installation of the duct pipes and the like, which takes a long time, and the casting of the slab concrete is greatly delayed. In addition, a considerable number of insert stats are arranged at appropriate intervals in the arranged duct pipe, so that the upper surface of the insert stat remains on the cast concrete when casting concrete. For this reason, there has been a problem that the leveling at the time of placing concrete cannot be performed by using a leveling machine, and is performed manually by manual labor, so that considerable trouble is required.

[0004] The present invention is directed to a method of arranging a floor duct and a floor duct member which solves the above-mentioned problems,
The purpose is to quickly install floor ducts on concrete slabs, and to finely arrange floor ducts to extract necessary power from the nearest intersection when installing electrical equipment, and change equipment. And to be able to easily respond to position changes.

[0005]

To SUMMARY OF THE INVENTION To achieve the above object, the arrangement method of the floor duct of the invention, the lower reinforcement is disposed on the floor formwork of the concrete slab, then the slab tube, A floor duct is arranged in a grid on the lower reinforcement using a junction box having a wiring outlet, and then slab concrete is laid by laying the reinforcement above the floor duct. did. The duct tube is long and flat Java
The flexible duct pipe is formed in the form of a flexible duct pipe.
Is cut to a predetermined length and its both ends are
The connection box was connected to each connection opening .
In addition, the supporting saddle has a pair of legs fixed to the floor form, and one
A horizontal plate provided in the middle of the pair of legs, and placed on the horizontal plate
Upper part of a pair of legs so that
And an opening / closing plate provided in
Saddle that supports the middle part of the duct pipe connecting between the junction boxes
To support it .

[0006] The floor duct member of the present invention is a concrete duct.
Floorer buried to route wiring in the heat slab
Joints connecting grids in a grid.
The lower surface of the box which has openings for duct connection on the three sides
The legs are provided in four directions, and the opening for connecting the duct is provided.
A waterproof elastic body is provided on the inner peripheral edge of the
A rising frame is provided detachably from the edge, and the rising frame
The lid is detachably attached to the upper surface of the
ing.

[0007]

[Action] In the arrangement method of the floor duct, distributing the downward slab reinforcement after casting, before disposing the upper reinforcement, the floor duct in position by joining a duct pipe and the intersection junction box making The work is easy because the upper reinforcing bars are not obstructed. When wiring is taken out from the floor duct, the wiring can be taken out by removing the lid at the top opening of the junction box at the required location, and it is not necessary to mount an insert stud in the middle of the duct as in the conventional case. For this reason, the slab concrete section defect is not concentrated, and a reinforcing bar is provided above the duct pipe, so that cracking of the concrete floor surface can be prevented.

[0008] In floor duct member, since the duct tube is attached leg intersection junction box making so as to be positioned in the middle of the thickness of the concrete slab, it only disposed at a predetermined position on the slab form Is fine. The flexible duct tube can be easily arranged simply by inserting it into the three or four opening of the junction box. By holding the middle position of the arranged flexible duct tube with the support saddle, the flexible duct tube can be installed. The level of the tube can be easily maintained. In addition, stands of different heights
The slab height can be accommodated by the rising frame and packing.
Adjust the height of the lid on the top of the junction box to the top of the slab.
And the duct pipe joined to the junction box
It will be lower than the top of the love by the height of the rising frame
Thus, cracks on the slab surface are prevented. Also junction box
Since a waterproof elastic body is provided in the duct joining opening of
It is possible to prevent inflow of slag when concrete is poured .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The floor duct member is a member that forms a grid-like floor duct in which one section is rectangular as shown in FIG. 1, and a long flattened bellows-like flexible duct tube 11 shown in FIG. And a support saddle 13 for supporting the middle of the flexible duct tube , and these members are made of hard vinyl chloride so as to be lightweight.

As shown in FIG. 4A, legs 15 are provided on the lower surface 4 of the rectangular box 14,
By fixing the lower part of the leg to the floor form 16 with a nail, the box part 14 is held at a predetermined height. The box part 14 is provided with openings 17 for connecting the flexible duct pipes 11 on four sides , and a gap is not formed at the inner peripheral edge of the tip of each opening 17 when the flexible duct pipe 11 is connected. A waterproof elastic body 18 is provided to prevent slag from flowing when the concrete a is poured. The opening 17 provided in a box unit 14 instead of providing the 4-way, the side of the 3-way as shown in FIG. 4 (b)
The one provided on the surface is also used, and the convenience of connecting the flexible duct pipes 11 in a lattice shape is achieved.

A rising frame 19 is provided from the opening edge of the upper surface opening 14a of the box portion 14, and the opening of the rising frame 19 has a detachable lid.
20 to be closed. As shown in FIG. 5, the lid 20 is attached to the upper end surface of the rising frame 19 with a screw 22 via a resilient packing 21, and the height of the lid 20 is adjusted by adjusting the compression state of the packing 21. It can be adjusted according to the top. Since the rising frame 19 is changed depending on the height of the slab, the rising frames having different heights can be detached. When the cover 20 is removed to take out the wiring from the floor slab, the telephone outlet 23 in FIG. 7A or the two-port outlet 24 in FIG.
Mounted in 19 openings.

The support saddle 13 is provided with a horizontal plate 26 for supporting a flexible duct between a pair of legs 25, and one end of an opening / closing plate 27 that sandwiches the flexible duct tube 11 from above is placed on one leg 25. Swingably mounted on the shingle. The other end of the opening / closing plate 27 is detachably engaged with the upper end of the leg 25 on the opposite side.

In the case where a floor duct for wiring is provided by using the above-mentioned floor duct member, a lower reinforcing bar 28 is provided on the floor form 16 and then the intersection joint box 12 is connected to the floor form. place at appropriate intervals in a predetermined position of the upper, further lattice shape 1 compartment is rectangular and connected to both ends of the flexible duct tube 11 cut to a predetermined length to square aperture 17 of each intersection junction box making Floor ducts will be installed. The upper surface of the lid 20 attached to the opening of the rising frame 19 of each intersection junction box is located at the top end of the set slab.
a1 and each connected flexible duct tube 11 is located intermediate to the slab thickness. Further, the intermediate position of each flexible duct tube 11 is held by the support saddle 13 to hold the duct horizontally. Next, the upper reinforcing bar 29 is arranged above the lattice-shaped floor duct, and the slab concrete a is cast, whereby the work of arranging the floor duct is completed. After this, O placed on the slab
When power is to be supplied to the A-device or the like, the lid 20 at the top of each junction box is removed, the wiring is taken out from the flexible duct tube 11, and the opening of the rising frame may be closed by the outlet 24.

[0014]

According to the floor duct arrangement method of the present invention, a lattice-shaped floor duct is arranged by using a flexible duct pipe and a junction box having a wiring outlet on the upper surface. After that, since the upper reinforcing bar is arranged and concrete is poured, the upper reinforcing bar does not become an obstacle when the floor duct is provided, and the work is facilitated. Also, since the wiring outlet is provided in the junction box without providing in the duct, there is no concentration of slab cross-sectional defects as in the past, and reinforcing bars are provided on the floor duct, so cracks on the slab floor surface It does not cause it. In addition, the box of the present invention
Floor duct members easily join duct pipes in a grid pattern
Power supply can be taken out from the top opening of the box
So that a large number of inserts can be
The work of installing the tostat can be omitted. Also at the intersection
The joint box has a duct tube joined to it,
In the middle of the slab thickness.
Thus, cracks on the slab surface can be prevented. Further floorers
The mounting members are protected by rising frames and packings of different heights.
The height of the lid on the top of the junction box
Can be adjusted according to the top of the slab. In addition, duct connection of box
A waterproof elastic body is provided in the joint opening,
It is possible to prevent the slag from flowing in at the time of casting .

[Brief description of the drawings]

FIG. 1 is a plan view showing an arrangement state of a floor duct of the present invention.

FIG. 2 is a sectional view showing an arrangement state of a floor duct of the present invention.

FIG. 3 is a side view and a plan view of a flexible duct tube.

FIG. 4 is a perspective view of two embodiments of a junction box.

FIG. 5 is a partial cross-sectional view showing an attached state of a lid of the junction box.

FIG. 6 is a perspective view of a support saddle.

FIG. 7 is a perspective view showing two aspects of an outlet.

FIG. 8 is a perspective view showing the arrangement of a conventional floor duct.

FIG. 9 is a cross-sectional view showing the arrangement of a conventional floor duct.

FIG. 10 is a sectional view showing a junction box portion of a conventional floor duct.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Flexible duct pipe 12 Intersection joint box 13 Support saddle 20 Lid

Claims (4)

(57) [Claims] After arranging a lower reinforcing bar of a slab on a floor form of a concrete slab, a grid-like floor is formed by using a junction tube and a duct pipe whose upper opening is closed by a lid. Connected on the lower reinforcing bars so as to form a duct, and arranged so that the upper surface of the lid of the intersection junction box is located at the upper surface of the slab, and then laying the reinforcing bars above the grid-like floor duct. A method of arranging floor ducts, which comprises placing slab concrete. 2. The duct pipe has a long and flat bellows shape.
It is formed in a flexible duct tube, and the flexible duct tube is
Cut to a fixed length and join the two intersections that are next to each other
Claims adapted to be connected to respective connection openings of the box
2. The method for disposing a floor duct according to 1. 3. A support saddle includes a pair of fixing members fixed to a floor formwork.
A leg, a horizontal plate provided between the pair of legs, and a horizontal plate
A pair of duct pipes arranged above are sandwiched from above
And an open / close plate provided on the upper part of the leg.
The middle part of the duct pipe connecting between the two junction boxes
3. The device according to claim 1, wherein the supporting saddle is supported by the supporting saddle.
How to arrange the floor ducts listed above . 4. For passing wiring in a concrete slab.
Intersection connecting floor ducts buried in a grid
Joint box for connecting ducts on at least three sides
On the lower surface of the box having an opening, legs are provided in four directions,
A waterproof elastic body is provided on the inner peripheral edge of the end of the duct connection opening.
It is provided, and the rising frame can be removed from the upper opening edge of the box
Provided on the upper end surface of the rising frame via packing
Characterized in that the floor is detachably mounted.
-Duct members.